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General Category => Amstrad CPC hardware => Topic started by: rexbeng on 11:20, 29 October 14

Title: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: rexbeng on 11:20, 29 October 14
Just for fun, we want to use an Amstrad monitor with a Linux PC (the purpose is to output our office server's logs in case you are THAT curious :P). Does anyone know if and how this is possible?


rb
Title: Re: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: chinnyhill10 on 11:55, 29 October 14
Quote from: rexbeng on 11:20, 29 October 14
Just for fun, we want to use an Amstrad monitor with a Linux PC (the purpose is to output our office server's logs in case you are THAT curious :P ). Does anyone know if and how this is possible?


rb


No it is not possible without some serious expense and effort. And it would still look rubbish.


And in a professional IT environment there are all sorts of issues running a 30 year old CRT that could fail at any time.
Title: Re: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: TotO on 13:13, 29 October 14
Quote from: rexbeng on 11:20, 29 October 14
Just for fun, we want to use an Amstrad monitor with a Linux PC (the purpose is to output our office server's logs in case you are THAT curious :P ). Does anyone know if and how this is possible?

rb
Sure it is... You have to tweak your screens mode to support a 15KHz signal instead of 31KHz.
You VGA to DIN adapter need to provide a composite Sync. (sometime provided by the videocard through the H-Sync, else you need an to make it)
Title: Re: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: chinnyhill10 on 13:26, 29 October 14
Quote from: TotO on 13:13, 29 October 14
Sure it is... You have to tweak your screens mode to support a 15KHz signal instead of 31KHz.
You VGA to DIN adapter need to provide a composite Sync. (sometime provided by the videocard through the H-Sync, else you need an to make it)


I refer to my expense and hassle point above. You need a graphics card that not only has 15KHz AND composite sync but also a specially wired adaptor.


Get that refresh rate wrong and wave goodbye to the monitor.


Complete waste of time.
Title: Re: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: Bryce on 13:27, 29 October 14
I 2nd TotO: If you have a VGA card that allows you to adjust the frequencies, then build this: http://www.mtuncel.com/AVGtoTV2/vga2tv.gif (http://www.mtuncel.com/AVGtoTV2/vga2tv.gif) for a few Euros. I might even have mine still lying around somewhere. I used my PC on a TV with this many moons ago. Check your card and I'll see if I can find the PCB.

Bryce.
Title: Re: Output from Linux PC to Amstrad GT or CTM monitor... is it possible?
Post by: rexbeng on 16:20, 29 October 14
Thanks for caring to answer guys!


So, if I get this correctly, prior to anything else I have to check whether the videocard's H-Sync supports 15Hz frequency...?


Alrighty then, let's see...
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